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Copper Alloy C87700-M01 vs C87700-M07

Copper Alloy · C87700 temper comparison

C87700-M01 and C87700-M07 are two conditions of the same copper alloy grade, C87700: M01 (as sand cast) versus M07 (as continuous cast). The chemistry is identical, so every difference below comes from the condition. C87700-M07 is the stronger of the two: yield strength 215 MPa (31.2 ksi) against 190 MPa (27.6 ksi) for C87700-M01, about 13% more; tensile strength follows at 460 MPa (66.7 ksi) vs 415 MPa (60.2 ksi). In exchange, C87700-M01 is the more ductile: elongation 25% versus 20% for C87700-M07, and C87700-M07 is harder (115 HB vs 100 HB).

C87700-M01Choose it when the part is bent, formed or impact-loaded.

C87700-M07Choose it when strength drives the design.

C87700-M01 vs C87700-M07: properties

C87700-M01C87700-M07

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

103 GPa14.9 Msi
107 GPa15.5 Msi

Tensile Strength (Ultimate)

415 MPa60.2 ksi
460 MPa66.7 ksi

Yield Strength (0.2% offset)

190 MPa27.6 ksi
215 MPa31.2 ksi

Elongation at Break

25%
20%

Reduction in Area

28%
24%

Compressive Strength

300 MPa43.5 ksi
330 MPa47.9 ksi

Shear Strength

275 MPa39.9 ksi
305 MPa44.2 ksi

Fatigue Strength (Endurance Limit)

135 MPa19.6 ksi
155 MPa22.5 ksi

Charpy V-Notch Impact (RT)

25 J18.4 ft·lbf
22 J16.2 ft·lbf

Hardness, Brinell

100 HB
115 HB

Hardness, Rockwell B

62 HRB
72 HRB

Hardness, Vickers

105 HV
120 HV

Same in both: Shear Modulus 39 GPa5.7 Msi · Bulk Modulus 108 GPa15.7 Msi · Poisson's Ratio 0.34

Physical

Density and transition temperatures.

Same in both: Density 8.3 g/cm³0.3 lb/in³ · Melting Point (Solidus) 820°C1,508 °F · Liquidus Temperature 915°C1,679 °F

Thermal

How each material carries heat and how hot it can run.

Thermal Conductivity

28 W/m·K16.2 BTU/hr·ft·°F
29 W/m·K16.8 BTU/hr·ft·°F

Same in both: Specific Heat Capacity 380 J/kg·K0.09 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 18 µm/m·K10 µin/in·°F · Latent Heat of Fusion 210 J/g90.3 BTU/lb · Max Service Temperature (continuous) 200°C392 °F · Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

6.7 % IACS
7 % IACS

Electrical Resistivity

2.6×10⁻⁷ Ω·m10.2 µΩ·in
2.5×10⁻⁷ Ω·m9.84 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

72 / 100
74 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -0.27 V

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Machinability

45 / 100
50 / 100

Machinability Rating (AISI 1212 = 100 %)

40%
45%

Weldability

80 / 100
78 / 100

Formability (cold)

30 / 100
24 / 100

Same in both: Castability 85 / 100 · Brazeability / Solderability 70 / 100 · Polishability 80 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 50 MJ/kg21,496 BTU/lb · Embodied Carbon (primary production) 3.4 kg CO₂/kg · Embodied Water 250 L/kg30 gal/lb · Typical Recycled Content 75%

Strength versus weight

Yield strength against density for every copper alloy grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.

501002005001,0007.588.599.5Density (g/cm³)Yield strength (MPa) — log scaleC87700

C87700-M01 vs C87700-M07 — frequently asked

Is C87700-M07 stronger than C87700-M01?

Yes. C87700-M07 has a typical yield strength of 215 MPa (31.2 ksi) against 190 MPa (27.6 ksi) for C87700-M01 — about 13% more. Tensile strength is 460 MPa (66.7 ksi) vs 415 MPa (60.2 ksi).

Which condition does FabDigit quote by default, M01 or M07?

M01 is the default C87700 condition in the FabDigit quote flow. The other condition is available on request or by drawing note — specify it in the material field or the part notes and the quote is priced for it.

Which is easier to machine, C87700-M01 or C87700-M07?

C87700-M07, by a small margin. Both rate fair for machinability — 50/100 against 45/100 for C87700-M01.

Ready to make it?

Upload a CAD file and FabDigit prices the part in C87700-M01 and C87700-M07 side by side — material, machining time, tolerance and finish in one quote. Certified material data ships with the order on request.

Typical handbook values for the conditions named above, normalised for comparison. Hardness on non-Brinell scales is converted approximately for charting only. Request certified data with your order for design-critical properties.